Complete one predator challenge by using only Silent Takedowns

Perform a perfect combo including all of Batman's combat moves (any play mode)

String up one henchman and drop him to surprise a second (any play mode).

Complete a combo of 40 moves (any play mode)

Solve every riddle on the island

KO all the henchmen celebrating your arrival at the party

Defeat Titan henchman without using Batarangs (any play mode)

Solve 70% of riddler challenges

Complete story mode on Easy difficulty

Defeat the giant Titan Ivy plant

Complete a combo of 20 moves (any play mode)

Venture into Killer Croc's lair and come out alive

Defeat two Titan Henchmen at once